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Carcharhinus tilstoni, Australian blacktip shark : fisheries
Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Carcharhiniformes (Ground sharks) 真鯊目 (Ground sharks) > Carcharhinidae (Requiem sharks) 白眼鮫科 (Requiem sharks)
Etymology: Carcharhinus:karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); tilstoni:In honor of Richard Tilston, naturalist-surgeon at Port Essignton, Northern Territory, near where holotype was collected in the 1840s (See ETYFish). Eponymy: Richard Tilston was a naturalist who trained as a physician at Guy’s Hospital, London (1841) and became a naval surgeon (1842). [...] (Ref. 128868), visit book page. More on author: Whitley.
Indo-West Pacific: currently known only from the continental shelf of tropical Australia. Very similar to Carcharhinus limbatus and reliably distinguished only by biochemical studies and vertebral counts (Ref. 9819). 印度-西太平洋: 現在已知只來自熱帶澳洲的大陸棚了。 非常類似 黑邊鰭白眼鮫〔Carcharhinus limbatus〕 與可靠的鑑別僅能藉由生物化學的研究與脊椎骨數。 (參考文獻 9819)
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm?, range 115 - ? cm Max length : 200 cm TL 雄魚/尚未辨別雌雄; (Ref. 9997); 最大體重: 52.0 kg (Ref. 6390); 最大年齡: 12 年 (Ref. 6390)
背棘 (總數) : 0; 臀棘: 0. Back dark grey, ashy blue or dusky bronze; belly white or yellowish white; a dark band extending rearward along each side to about over origin of pelvic fin; tips of pelvic fins with a persistent black spot (Ref. 9997). Body shape (shape guide): fusiform / normal. 背面深灰色的﹐灰藍色或暗青銅色; 腹部白色或黃白色; 一個延伸的深色條紋向後沿著兩邊到大約腹鰭的起源上面; 腹鰭頂端具有一個持續的黑色斑點。 (參考文獻 9997)
Found on the continental shelf from close inshore to about 150 m depth (Ref. 9997). Found throughout the water column but usually near the sea bed during the day and near the surface at night (Ref. 6390). Prefers teleost fishes but also feeds on cephalopods to a lesser degree. Viviparous (Ref. 50449). Forms large aggregations (Ref. 6871). Utilized for its meat and fins (Ref. 6871). The flesh has a relatively high mercury content (Ref. 6871).
Viviparous, placental (Ref. 50449). The average litter size is 3, with a range of 1-6, average total length at birth is 60 cm. Pups are born in January after a 10-month gestation period. These sharks breed once each year (Ref. 13440). Distinct pairing with embrace (Ref. 205).印度-西太平洋: 現在已知只來自熱帶澳洲的大陸棚了。 非常類似 黑邊鰭白眼鮫〔Carcharhinus limbatus〕 與可靠的鑑別僅能藉由生物化學的研究與脊椎骨數。 (參考文獻 9819)
Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993. Australian fisheries resources. Bureau of Resource Sciences, Canberra, Australia. 422 p. (Ref. 6390)
首選溫度 (參考文獻 123201): 26 - 28.7, mean 27.7 °C (based on 424 cells).
系統發育多樣性指數 (參考文獻 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00244 - 0.01130), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
營養階層 (參考文獻 69278): 4.2 ±0.6 se; based on diet studies.
Generation time: 7.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
